1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Historical copyright notices: 4 * 5 * Copyright 2004 James Cleverdon, IBM. 6 * (c) 1995 Alan Cox, Building #3 <alan@redhat.com> 7 * (c) 1998-99, 2000 Ingo Molnar <mingo@redhat.com> 8 * (c) 2002,2003 Andi Kleen, SuSE Labs. 9 */ 10 11 #include <linux/jump_label.h> 12 13 #include <asm/irq_vectors.h> 14 #include <asm/apic.h> 15 16 /* X2APIC */ 17 int x2apic_apic_id_valid(u32 apicid); 18 void __x2apic_send_IPI_dest(unsigned int apicid, int vector, unsigned int dest); 19 unsigned int x2apic_get_apic_id(unsigned long id); 20 u32 x2apic_set_apic_id(unsigned int id); 21 int x2apic_phys_pkg_id(int initial_apicid, int index_msb); 22 23 void x2apic_send_IPI_all(int vector); 24 void x2apic_send_IPI_allbutself(int vector); 25 void x2apic_send_IPI_self(int vector); 26 extern u32 x2apic_max_apicid; 27 28 /* IPI */ 29 30 DECLARE_STATIC_KEY_FALSE(apic_use_ipi_shorthand); 31 32 static inline unsigned int __prepare_ICR(unsigned int shortcut, int vector, 33 unsigned int dest) 34 { 35 unsigned int icr = shortcut | dest; 36 37 switch (vector) { 38 default: 39 icr |= APIC_DM_FIXED | vector; 40 break; 41 case NMI_VECTOR: 42 icr |= APIC_DM_NMI; 43 break; 44 } 45 return icr; 46 } 47 48 void default_init_apic_ldr(void); 49 50 void apic_mem_wait_icr_idle(void); 51 u32 apic_mem_wait_icr_idle_timeout(void); 52 53 /* 54 * This is used to send an IPI with no shorthand notation (the destination is 55 * specified in bits 56 to 63 of the ICR). 56 */ 57 void __default_send_IPI_dest_field(unsigned int mask, int vector, unsigned int dest); 58 59 void default_send_IPI_single(int cpu, int vector); 60 void default_send_IPI_single_phys(int cpu, int vector); 61 void default_send_IPI_mask_sequence_phys(const struct cpumask *mask, int vector); 62 void default_send_IPI_mask_allbutself_phys(const struct cpumask *mask, int vector); 63 void default_send_IPI_allbutself(int vector); 64 void default_send_IPI_all(int vector); 65 void default_send_IPI_self(int vector); 66 67 bool default_apic_id_registered(void); 68 69 #ifdef CONFIG_X86_32 70 void default_send_IPI_mask_sequence_logical(const struct cpumask *mask, int vector); 71 void default_send_IPI_mask_allbutself_logical(const struct cpumask *mask, int vector); 72 void default_send_IPI_mask_logical(const struct cpumask *mask, int vector); 73 void x86_32_probe_bigsmp_early(void); 74 void x86_32_install_bigsmp(void); 75 #else 76 static inline void x86_32_probe_bigsmp_early(void) { } 77 static inline void x86_32_install_bigsmp(void) { } 78 #endif 79 80 #ifdef CONFIG_X86_BIGSMP 81 bool apic_bigsmp_possible(bool cmdline_selected); 82 void apic_bigsmp_force(void); 83 #else 84 static inline bool apic_bigsmp_possible(bool cmdline_selected) { return false; }; 85 static inline void apic_bigsmp_force(void) { } 86 #endif 87